..method::ArgumentParser.parse_known_args(args=None, namespace=None)

Sometimes a script may only parse a few of the command-line arguments, passing

the remaining arguments on to another script or program. In these cases, the

:meth:`~ArgumentParser.parse_known_args` method can be useful. It works much like

:meth:`~ArgumentParser.parse_args` except that it does not produce an error when

extra arguments are present. Instead, it returns a two item tuple containing

the populated namespace and the list of remaining argument strings.

Sometimes a script only needs to handle a specific set of command-line

arguments, leaving any unrecognized arguments for another script or program.

In these cases, the:meth:`~ArgumentParser.parse_known_args` method can be

useful.

This method works similarly to:meth:`~ArgumentParser.parse_args`, but it does

not raise an error for extra, unrecognized arguments. Instead, it parses the

known arguments and returns a two item tuple that contains the populated

namespace and the list of any unrecognized arguments.

::